campbell's soups give you nutrition, energy, and can help you keep a healthy weight. campbell's. it's amazing what soup can do. >>> federal sources confirmed to fox news investigators are now considering a person of interest, a saudi national in today's terror bombing. this is not to say they believe that this person was anyway involved but this is circumstances suggested them to more questions are necessary. the person of interest said to be around 20 years old and here on a student visa appearing to be legit according to the reporting of our security correspondent. there is also word that a search is underway tonight in an apartment in refer, massachusetts just outside of boston. is the person of interest in the apartment connected? we have no way of knowing for sure but will bring you more information as we get it throughout the night. president obama addressed the nation in hours after the bombing in boston briefly and says he has spoken with leaders and assured them the federal government will do everything in his power to help survivors and the president prom prised th the